新概念青少版2B Unit21.ppt

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1、Unit21Theweatherforecastweatherforecastforecastv.预测，预报['fɔ:kɑ:st]WeathersnowrainshowerwindcloudstormsunnycloudyrainysnowywindystormyshowerysunWhat’stheweatherliketoday?--It’swindy.(cloudy/snowing)blow吹forecastern.预测员announcern.播音员，节目主持人[ə'naunsə]thenextfew…接下来的几个……在接下来的几天天气将要变化。T

2、heweatherwillchangeinthenextfewdays.windn.风blowv.吹She’sblowingthedandelion['dændɪlaɪən].Fromtoday,thewindwillblowfromthesouthwest.从今天起，风将会从西南部吹过来。Fromtomorrow,thewindwillblowfromthesoutheast.从明天起，风将会从东南部吹过来。ThewindwillbringinwarmairfromtheAtlantic.风将从大西洋带来暖空气。bringinv.带来Atlanticn

3、.大西洋ThewindwillbringinwetairfromAustralia.风将从澳大利亚带来（bringin）潮湿的空气。Rainwillcomeingraduallyfromthesouthwestthisevening.今天晚上，雨将会从西南方逐渐来临。graduallyadv.逐渐地Therainisgraduallyheavy.雨逐渐地大起来了。n.阵雨rainshowerThewholecountrywillhavesomerainshowersinthenextthreedays.在接下来的三天，全国将会有一些阵雨。Thiscity

4、willhavelotsofrainshowersinthenextthreemonths.在接下来的三个月，这个城市将会有大量阵雨。temperaturen.温度['tempəritʃə]degreesCelsiusn.摄氏度[di'ɡri:z'selsiəs]['færəhait]温度：temperature度degree零下4度minusfourThetemperatureis——today.Thetemperaturewillbe—tomorrow.--What’sthetemperature？--It’s2℃~9℃.(twodegreesCel

5、sius/centigrade[‘sentɪgreɪd]toninedegreesCelsius)Canyouread?-7℃~1℃5℃~8℃betweenminussevenandonedegreesbetweenfiveandeightdegreesstormy5~8ºCHow’stheweatherin…?What’sthetemperature?windy-1~14ºCcloudy-7~1ºCrisedownTemperaturewillriseto12degreesCelsiusintheday.白天气温将会上升到12摄氏度。risev.上升f

6、allv.下降Nighttemperaturewillfallto4degreesCelsius.夜间气温将会下降至4摄氏度。outlookn.前景，展望theoutlookfor…对于……的前景Let'sguess.forecast['fɔ:-kɑ:st]announcer[ə'naʊnsə]n.宣告者；播音员gooverto转到forecaster预报员名词n.wind[wind]n.风,气流blow[bləu]n.一击,打击vt.&vi.吹;吹气;degreesCelsius摄氏度outlookn.景色,景致，展望raise[reiz]vt.提起

7、;举起;graduallyadv.逐渐地上升1预报2接下来的几个3播音员3展望2逐渐地2下降1摄氏度3Listenandanswer.Whatwilltheweatherbelikenextweek?Fromtoday,willthewindblowfromthenorth?Let’sreadthedialogue,thenanswerthefollowingquestions.1.Waslastmonthunusuallywarmandwet?2.Willraincomeinquicklyfromthesouthwest?3.Whatwillthewh

8、olecountryhaveinthenextthreedays?4.Whenw